Herbicidal compounds

ABSTRACT

A herbicidal compound of the formula ##STR1## in which Q is --CR 1  (R 2 )C(R 3 )(R 4 )Q&#39; or --CR 1  ═C(R 4 )Q&#39;; 
     R 1 , R 2  and R 3  are each, independently, hydrogen, halogen, or lower alkyl; 
     R 4  is hydrogen or lower alkyl; 
     Q&#39; is COOH, COOZ, COOR 5 , CON (R 6 )(R 7 ), CN, CHO or C(O)R 5  ; 
     Z is a salt-forming cation; 
     R 5  is alkyl, cycloalkyl or aralkyl; 
     each of R 6  and R 7  is, independently, hydrogen alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, phenyl, benzyl, or SO 2  R 8  or is one of said radicals substituted by halogen, alkyl, or cyano, R 8  being the same as R 6  other than hydrogen or SO 2  R 8  ; 
     NHet is a monovalent nitrogen-containing organic group; and 
     NHet, X and Y are such that the Methoxy Analog or Propargyloxy Analog of said compound is a herbicide.

This invention relates to novel herbicides for weed control in agriculture, horticulture and other fields where it is desired to control unwanted plant growth, such as grassy or broadleaf plant species. The invention also relates to intermediates for the production of such herbicides.

One aspect of this invention relates to herbicidal compounds of the formula

    Q-Ar-NHet Formula I

where Q-Ar is a substituted phenyl radical (e.g. of the formula ##STR2## in which the substituent Q is at the 5-position (meta to the nitrogen of said formula I); and where

Q is a group of the formula:

--CR¹ (R²)C(R³)(R⁴)Q' or --CR¹ ═C(R⁴)Q' in which Q' is a carboxylic acid group (i.e. COOH) or a salt, ester, amide, or nitrile of such carboxylic acid group. Thus Q' may be:

CO₂ H,

CO₂ Z,

CO₂ R⁵,

CON(R⁶)(R⁷), or

CN.

In another aspect of this invention Q' may be an aldehydic or ketonic group, e.g. --CHO or --COR⁵.

Z may be a salt-forming cation, such as one which forms a base addition salt with a carboxylic acid (e.g., a sodium, potassium, calcium, ammonium, magnesium, or mono-, di- or tri(C₁₋₄ alkyl)ammonium or sulfonium or sulfoxonium ion). R⁵ may be alkyl, cycloalkyl of 3 to 6 carbon atoms (e.g. cyclopropyl or cyclopentyl), or aralkyl such as benzyl or substituted benzyl (e.g., halobenzyl, alkylbenzyl, or haloalkylbenzyl, such as 4-chlorobenzyl or 4-trifluoromethylbenzyl). R⁶ and R⁷ may each, independently, be hydrogen, hydroxy, alkyl, cycloalkyl, alkenyl, alkynyl (e.g., propynyl), alkoxy, phenyl, benzyl, or SO₂ R⁸ in which R⁸ is the same as R⁶ other than hydrogen or SO₂ R⁸, or any of the foregoing carrying additional substituents; such additional substituents may be halogen, haloalkyl (e.g. chloroethyl), halophenyl (e.g. chlorophenyl), or halobenzyl (e.g. chlorobenzyl); alkyl; or cyano.

In the foregoing formula for Q, R¹, R² and R³ may each, independently, be hydrogen, alkyl such as lower alkyl (e.g. methyl) or halogen such as chlorine, bromine, or fluorine, while R⁴ may be hydrogen or lower alkyl.

In Formula I above Ar and NHet are so chosen that when Q is methoxy or propargyloxy (instead of Q having the formula given above) the compound is a herbicide. Compounds in which Q in Formula I is methoxy or propargyloxy are, for convenience, here designated as Methoxy Analogs and the Propargyloxy Analogs of the claimed novel compounds. Such Methoxy Analogs and Propargyloxy Analogs are well known in the art.

Preferably, "Ar" carries a substituent (i.e. other than hydrogen) at the 2-position or the 4-position of the phenyl radical, most preferably at both the 2-and 4-positions.

X may be hydrogen; halogen such as chlorine, bromine, or fluorine (preferably fluorine or chlorine); alkyl such as lower alkyl (e.g. methyl); haloalkyl such as halo lower alkyl (e.g. CF₃, CH₂ F or CHF₂); alkoxy such as lower alkoxy (e.g. methoxy); or NO₂ ; and

Y may be hydrogen; halogen such as chlorine, bromine, or fluorine (preferably bromine or chlorine); alkyl such as lower alkyl (e.g. methyl); alkoxy such as lower alkoxy (e.g. methoxy); alkylthio such as lower alkylthio (e.g. methylthio); haloalkyl such as halo lower alkyl (e.g. fluoroalkyl); halo lower alkylsulfinyl (e.g. --SOCF₃); or haloalkoxy such as halo lower alkoxy (e.g. as --OCHF₂).

Presently preferred X and Y substituents are: 2-F, 4-Cl; 2-F, 4-Br; 2,4-Cl₂ ; 2-Br, 4-Cl; and 2-F,4-CF₃.

In the preferred compounds of this invention, NHet and Ar (or X and Y) are so chosen that the Methoxy Analog or the Propargyloxy Analog of such preferred compound has marked herbicidal properties, such Analog showing at least 50% kill of at least one of the following plant species when applied under at least one of the following modes at the rate of 0.5 kg/ha, and more preferably showing such 50% kill when applied at the rate of 0.1 kg/ha:

Species: velvetleaf (Abutilon theophrasti), green foxtail (Setaria viridis); Modes: pre-emergent, postemergent. Testing for such herbicidal activity may be carried out in the manner described below under the heading "Herbicidal Activity".

NHet is a monovalent nitrogen-containing organic group. NHet may be one of the following groups, for example: ##STR3## where R^(a) and R^(b) are, for example, independently, alkyl or haloalkyl or other radicals such as those disclosed in U.S. Pat. Nos. 4,318,731; 4,398,943; 4,404,019; 4,743,291; 4,702,945; 4,705,557; 4,702,763; 4,761,174 and lnternational patent publications WO 85/01637, WO 85/04307, WO 87/00730, WO 87/03782, WO 86/04481 and WO 88/01133; ##STR4## where R is, for example, alkyl or haloalkyl or other radical, such as those disclosed in U.S. Pat. No. 4,734,124 and International patent publications WO 85/01939 and WO 87/03873; ##STR5## where R^(c) and R^(d) are each H or together constitute a double bond and R^(e) is, for example, an alkyl, haloalkyl or other radical, such as those disclosed in U.S. Pat. Nos. 4,755,217 and 4,766,233 and International patent publication WO 86/00072; ##STR6## where Z^(a) is halo, alkyl, alkoxy, alkylsulfonyl, etc., and R^(f) and R^(g) may be alkyl, or taken together may be alkylene for instance, such as disclosed in Derwent Abstracts accession nos. 84-090669 (British patent 2,127,410); 85-100678 (European patent 138,527); 86-04852 and 88-101642; ##STR7## where, for instance, X^(a) and Y^(a) may be O or S and A may be (CH₂)_(n) such as disclosed in Derwent Abstracts aCCession nos. 86-133831, 87-215141 (European patent 230,874) and 86-140810; ##STR8## where Y^(b) may be O or S, such as disclosed in Derwent Abstracts accession nos. 85-240363 and 87-21541; ##STR9## where, for instance, R^(h) and R^(i) may together constitute an alkylene group, such as disclosed in Derwent Abstracts accession no. 86-133830; ##STR10## where, for instance, R^(j) and R^(k) together constitute an alkylene group, such as disclosed in Derwent Abstracts accession nos. 88-191726, 88-163183 and 88-243443; ##STR11## where, for instance, n is 0, 1, or 2; W is O or S; and R^(mm) and R^(m) may be H; or R^(mm) may be Cl and R^(m) may be H; or R^(mm) and R^(m) together form a double bond such as disclosed in U.S. Pat. No. 4,179,276 and Derwent Abstracts accession nos. 88-163183 and 88-243443; ##STR12## such as disclosed in Derwent Abstracts accession nos. 84-214701, 88-163183 and 88-243443; ##STR13## where, for instance, R^(n) is lower alkyl, alkenyl, alkynyl or cycloalkyl such as disclosed in European patent 69855 and Derwent Abstracts accession no. 84-027480; ##STR14## where R^(o) is lower alkyl or cycloalkyl such as disclosed in Derwent Abstracts accession nos. 84-246947, 87-238787 or 88-190606 (International patent publication WO 8804653) and U.S. Patent Nos. 3,385,862; 3,836,539; and 3,876,413; ##STR15## where R^(p) is, for instance, lower alkyl, e.g., isopropyl; ##STR16## where, for example, R^(q) is H, alkyl, alkenyl or alkynyl and R^(r) and R^(s) are H or lower alkyl, such as disclosed in Derwent Abstracts accession no. 88-092987 (European patent 262428); ##STR17## where, for example R^(t) is hydrocarbyl group such as propyl, and R^(u) may be H or hydroxycarbonyl, such as disclosed in Derwent Abstracts accession nos. 88-168716 (German patent 3636552) and 88-243443; ##STR18## where R^(v) is alkylene which may be substituted, such as disclosed in Derwent Abstracts accession nos. 84-034261 and 84-090045; ##STR19## where X^(b) is O or S, such as disclosed in Derwent Abstracts accession no. 87-040749; ##STR20## where R^(w) is, for example, alkylene such as tetramethylene; ##STR21## where R^(x) and R^(y) may together constitute an alkylene group which may be interrupted by O, S or vinylene, such as disclosed in U.S. Pat. No. 4,521,242 and Derwent Abstracts accession no. 86-180564.

U.S. Pat. No. 4,439,229 and lnternational patent publication WO 87/07602 also disclose other NHet rings which may be used, such rings being illustrated, for example, at column 4 line 25 to column 5 line 20 of U.S. Pat. No. 4,439,229 and at pages 12 to 14 of WO 87/07602. It will be seen that many of the suitable NHet groups comprise a 5- or 6-membered heterocyclic ring having one to four ring-nitrogen atoms and having the formula ##STR22## where M represents the balance of the heterocyclic ring and R^(z) represents hydrogen or a substituent group.

Particularly suitable compounds are those whose Methoxy Analog or Propargyloxy Analog, e.g., an Analog of the formula ##STR23## is a plant-membrane disrupting herbicide which acts as an inhibitor of the enzyme protoporphyrinogen oxidase, its I₅₀ for that enzyme being less than 1 μM preferably less than about 0.3 μM, e.g. an I₅₀ of about 0.1 or 0.03 or 0.01 μM or less. A test for such inhibition is set forth in Appendix C below.

One test for the membrane (plasmalemma) disruption capacity is the Efflux Experiment described in the article by Halling and Peters in Plant Physiology, 84, 1114-5 (1987). In such a test (described in more detail in Appendix A below), the Methoxy or Propargyloxy analog preferably shows a total efflux of at least 50% at a treatment rate of 100 μM, preferably at a treatment rate of 1 μM or less, such as 100 nM; highly active materials, such as 1-(4-chloro-2-fluoro-5-propargyloxyphenyl)-3-methyl-4-difluoromethyl-.DELTA.² -1,2,4-triazolin-5-one, give total efflux percentages of over 90% at 100 nM concentration.

Another test of the capacity of a material for disrupting the plasmalemma of plant material is the Light-Induced Greening Inhibition Test described more particularly in Appendix B below. This test measures the capacity to inhibit the light-greening of dark-bleached Chlamydomonas reinhardi mutant y-1 (a type of algae which when grown in the dark does not make chlorophyll, so that the mass of algae becomes bleached owing to the presence of new non-green cells, and which produces chlorophyll again when it is exposed to light). The compounds of this invention preferably are those whose Methoxy or Propargyloxy analog has the ability to inhibit the light-greening by at least 50% when used at a concentration of 10⁻⁵ M, more preferably at a concentration of 10⁻⁶ M or less, e.g., 10⁻⁷ M. In addition, the compound should be one whose Methoxy or Propargyloxy Analog, when used at said concentration in the Light-Greening Inhibition Test, gives a supernatant which shows a light absorption peak at about 405 nm which is higher than the chlorophyll peak (the peak at about 668 nm in this system), e.g. the supernatant shows a 405 nm peak whose height is 2, 3 or 4 times the height of the 668 nm peak.

Representative compounds of this invention are listed in Table 1 below.

One may describe many of the compounds of this invention by the formulas ##STR24## in which Q', R¹, R², R³ and R⁴ have the meanings set forth above and the substituent R¹ on the tetrazolinone ring may be any of those known in the prior art discussed above.

X may be hydrogen; halogen such as chlorine, bromine, or fluorine (preferably fluorine or chlorine); alkyl such as lower alkyl (e.g. methyl); haloalkyl such as halo lower alkyl (e.g., CF₃, CH₂ F or CHF₂); alkoxy such as lower alkoxy (e.g., methoxy); or nitro; and Y may be hydrogen; halogen such as chlorine, bromine, or fluorine (preferably bromine or chlorine); alkyl such as lower alkyl (e.g. methyl); alkoxy such as lower alkoxy (e.g. methoxy); haloalkyl such as halo lower alkyl (e.g. fluoroalkyl); alkylthio such lower alkylthio (e.g. methylthio); halo lower alkylsulfinyl (e.g., --SOCF₃); or halo lower alkoxy (e.g., --OCHF₂).

Presently preferred X and Y substituents are 2-F, 4-Cl; 2-F, 4-Br; 2,4-Cl₂ ; 2-Br, 4-Cl; and 2-F, 4-CF₃.

In each aspect of the invention it is often preferable that any alkyl, alkenyl, alkynyl or alkylene moiety (such as the hydrocarbon moiety of an alkoxy or haloalkoxy group) has up to about 6 carbon atoms, e.g., 1 to 4 or 5 carbon atoms, and that any cycloalkyl moiety have 3 to 7 ring carbon atoms, more preferably 3 to 6 carbon atoms.

Any acidic compound of this invention, including sulfonamides in which NR⁶ R⁷ is NHSO₂ R⁸, may be converted to the corresponding base addition salt, such as a salt in which the salt-forming cation is Z (Z being as described above).

The present compounds may be prepared by methods described in the literature or in the following Examples or by methods analogous and similar thereto and within the skill of the art. In the Example below a compound of the formula ##STR25## (such as the compound shown in Example 1E of International patent publication WO/03873, published July 2, 1987, in which X=F, Y=Cl and R=--(CH₂)₃ F) is reacted (according to a procedure described by Doyle et al., J. Org. Chem. 42, 2431 (1977)) with an alkyl nitrite, a copper (II) halide, and an olefinic compound having the formula C(R¹)(R²)═C(R⁴)Q' to form a compound of formula I above in which Q is --C(R¹)(R²)C(R³)(R⁴)Q' and in which R³ is halogen and R² is hydrogen. That compound may be dehydrohalogenated (e.g., with sodium hydride or other suitable base) to yield a compound of formula II above in which Q is --C(R¹)═C(R⁴)Q'. To produce the latter, one may also use the method of Example 1 below starting with a compound of the formula ##STR26## such as the 3-amino-6-chloro-4-fluorocinnamic acid ethyl ester described in Japanese published application 59-15538 of Sep. 4, 1984. The amino group is converted to an NHet group, as by a method described in the above-mentioned International patent publication WO 85/01939 forming a compound of the formula ##STR27## The reactant C(R¹)R² ═C(R⁴)Q' may be, for example, methyl acrylate, ethyl acrylate, methyl methacrylate, methyl 3-chloroacrylate, methacrolein, vinyl methyl ketone, ethyl crotonate, acrylonitrile, methacrylonitrile or the like.

The --C(R¹)═C(R⁴)CO₂ R⁵ group may be hydrogenated or halogenated to form a compound in which Q is --C(R¹)(R²)C(R³)(R⁴)Q' and R² and R³ are hydrogen (from hydrogenation as in Example 1D below) or R² and R³ are halogen (from halogenation as in Example 2). When Q' is CO₂ H, the acidic compound of formula I may be converted to the corresponding amide, such as by first treating with a reagent such as thionyl chloride to form the acid halide (wherein Q' is, for example, --COCl) and then reacting with ammonia or an amine. Alternative methods of amide formation may involve known carbodiimidemediated coupling.

The invention is illustrated further in the following Examples. In this application all temperatures are in °C. unless otherwise indicated.

EXAMPLE 1 Ethyl 3-[2-Chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propionate

Step A Ethyl 3-[2-chloro-4-fluoro-5-(1,4-dihydro-5-oxo-5H-tetrazol-1-yl)phenyl]-propenoate

A stirred mixture of 8.06 g (0.0449 mole) of ethyl 3-(5-amino-2-chloro-4-fluorophenyl)propenoate and 5.32 g (0.0269 mole) of trichloromethyl chloroformate in 200 mL of 1,4-dioxane was heated at reflux for approximately three hours. The solvent was removed by distillation under reduced pressure, leaving a residue. To this residue was added 50 mL of trimethylsilyl azide, and the resultant mixture was stirred and heated at reflux for approximately 18 hours. The mixture was cooled and was diluted with toluene. The organic mixture was washed with water. The organic phase was evaporated under reduced pressure, leaving a residue. This residue was dissolved in ethyl acetate and was washed in succession with 1N hydrochloric acid, an aqueous, saturated sodium bicarbonate solution, and water. The washed organic phase was dried over anhydrous magnesium sulfate and was filtered. The filtrate was evaporated under reduced pressure leaving a residue. This residue was purified by column chromatography on silica gel to yield ethyl 3-[2=chloro-4-fluoro-5-(1,4-dihydro-5-oxo-5H-tetrazol-1-yl)phenyl]propenoate as a solid, mp 106°-109° C.

The ir and nmr spectra were consistent with the proposed structure.

Step B 3-Fluoropropyl methanesulfonate

To an ice cold, stirred solution of 19.0 g (0.244 mole) of 3-fluoropropanol and 39.5 g (0.300 mole) of triethylamine in 300 mL of methylene chloride was added dropwise 34.4 g (0.300 mole) of methanesulfonyl chloride. The resultant mixture was allowed to warm to room temperature and was stirred for approximately 18 hours. The mixture was poured into water and was washed with an aqueous, saturated sodium bicarbonate solution. The organic phase was dried over anhydrous magnesium sulfate and was filtered. The filtrate was distilled under reduced pressure to yield 41.3 g of 3-fluoropropyl methanesulfonate as a liquid, bp 116° C./15 mm Hg.

The nmr spectrum was consistent with the proposed structure.

Step C Ethyl 3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propenoate

To a stirred mixture of 2.62 g (0.00830 mole) of ethyl 3-[2-chloro-4-fluoro-5-(1,4-dihydro-5-oxo-5H-tetrazol-1-yl)phenyl]propenoate in 20 mL of N,N-dimethylformamide was added 1.46 g (0.00939 mole) of 3-fluoropropyl methanesulfonate and 1.30 g (0.00939 mole) of potassium carbonate. The reaction mixture was heated at 50°-60° C. and was stirred at that temperature for approximately 18 hours. The mixture was cooled and was poured into ice water. This mixture was extracted with ethyl acetate. The extract was dried over anhydrous magnesium sulfate and was filtered. The filtrate was evaporated under reduced pressure to yield 0.76 g of ethyl 3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propenoate as an oil, compound 4 of Table 1.

The nmr spectrum was consistent with the proposed structure.

Step D Ethyl 3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propionate

The hydrogenation of 0.45 g (0.0012 mole) of ethyl 3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propenoate with approximately 0.1 g of platinum (IV) oxide in ethyl acetate yielded 0.43 g of ethyl 3-[2-chloro-4-fluoro-5[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5-H-tetrazol-1-yl]phenyl]propionate as an oil, compound 1 of Table 1.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 2 Ethyl 2,3-Dibromo-3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propionate

The bromination of 0.34 g (0.00091 mole) of ethyl 3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propenoate with five drops of bromine in 10 mL of methylene chloride yielded 0.38 g of ethyl 2,3-dibromo-3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1yl]phenyl]propionate as an oil, compound 2 of Table 1.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 3 Ethyl 2-chloro-3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propionate

To an ice cold, stirred mixture of 5.54 g (0.0553 mole) of ethyl acrylate, 10 mL of acetonitrile, 0.43 g (0.0042 mole) of tert-butyl nitrite, and 0.45 g (0.0033 mole) of copper (II) chloride was added a solution of 0.80 g (0.0028 mole) of 1-(5-amino-4-chloro-2-fluorophenyl)-1,4-dihydro-4-(3-fluoropropyl)-5H-tetrazol-5-one (which may be prepared as described in International patent publication WO 87/03873, Example 1 A-E) in 10 mL of acetonitrile. The reaction mixture was stirred at room temperature for five hours and then was diluted with 2N hydrochloric acid. The acidic mixture was extracted with three portions of diethyl ether. The extracts were combined and dried over anhydrous magnesium sulfate. The dried organic phase was filtered and the filtrate was evaporated leaving a residue. This residue was purified by column chromatography on silica gel, eluting with n-heptane: ethyl acetate (2:1) to yield 1.1 g of ethyl 2-chloro-3-[2-chloro-4-fluoro-5-[4-(3-fluoropropyl)-1,4-dihydro-5-oxo-5H-tetrazol-1-yl]phenyl]propionate as an oil, compound 3 of Table 1.

The nmr spectrum was consistent with the proposed structure.

EXAMPLE 4 Methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate

Step A Methyl 2-Chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate

To a cold (0° C.), stirred mixture of 28.7 g (0.333 mole) of methyl acrylate, 2.51 g (0.0244 mole) of tert-butyl nitrite, and 2.6 g (0.019 mole) of copper (II) chloride in 50 mL of acetonitrile was added dropwise a solution of 5.0 g (0.016 mole) of 1-(5-amino-2,4-dichlorophenyl)-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one in 15 mL of acetonitrile. After complete addition the reaction mixture was allowed to war to room temperature and was stirred for approximately 18 hours. The reaction mixture was diluted with 15 mL of 2N hydrochloric acid solution. The mixture was extracted with four portions of diethyl ether. The combined extracts were dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure to give an oil. The oil was purified by column chromatography on silica gel, eluting with n-heptane:ethyl acetate (4:1) to give 5.0 g of methyl 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate as an oil, Compound A3 of Table 1A.

Step B Methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propenoate

To a stirred, cold (0° C.) solution of 4.16 g (0.0100 mole) of methyl 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate in 15 mL of N,N-dimethylformamide was added portionwise 0.29 g (0.012 mole) of sodium hydride. After complete addition the reaction mixture was allowed to warm to room temperature and was stirred for 30 minutes. The reaction mixture was heated at 60° C. for six hours and then was stirred at room temperature for approximately 18 hours. The reaction mixture was poured into ice water, and the resultant aqueous mixture was extracted with four portions of diethyl ether. The extracts were combined and washed successively with water and an aqueous, saturated sodium chloride solution. The washed organic phase was dried over anhydrous magnesium sulfate and was filtered. The filtrate was evaporated under reduced pressure to give a white foam. The foam was purified by column chromatography on silica gel, eluting with n-heptane:ethyl acetate (4:1), to give 1.63 g of methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propenoate as a solid, m.p. 148°-151° C., Compound A39 of Table 1A.

Step C Methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate

Hydrogenation of 0.59 g (0.0016 mole) of methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propenoate (Compound A39) over approximately 0.2 g (0.0009 mole) of platinum (IV) oxide in approximately 15 mL of ethyl acetate gave after filtration and concentration 0.59 g of methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate as a clear oil, which crystallized upon standing. The crystals were triturated with petroleum ether and recovered by filtration, m.p. 70°-73° C., Compound Al of Table 1A.

EXAMPLE 5 Methyl 2,3-dibromo-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)-phenyl]propionate

In a manner similar to that of Abbott and Althoresen, Org. Syn., Coll. Vol. 2, pg 270, 0.24 g (0.00063 mole) of methyl 3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propenoate (Compound A39) was treated with six drops of bromine in 15 mL of carbon tetrachloride to give 0.40 g of methyl 2,3-dibromo-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionate as a solid, Compound A10 of Table 1A.

The nmr spectrum was consistent with the proposed structure.

EXAMPLE 6 N-Cyclopropyl-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide

Step A 2-Chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid

To a stirred mixture of 26.3 g (0.366 mole) of acrylic acid, 2.83 g (0.275 mole) of tert-butyl nitrite, and 2.94 g (0.0220 mole) of copper (II) chloride in 75 mL of acetonitrile was added slowly 5.65 g (0.0183 mole) of 1-(5-amino-2,4-dichlorophenyl)-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one. The reaction mixture was stirred at room temperature for three hours. The reaction mixture was poured into 2N hydrochloric acid solution, and the whole was extracted with diethyl ether. The organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure to give a yellow solid. The solid was triturated with water and was filtered. The filter cake was dried to give 5.9 g of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-2-yl)phenyl]propionic acid, Compound A2 of Table 1A.

The nmr spectrum was consistent with the proposed structure. A similarly prepared sample of Compound A2 had a melting point of 138°-141° C.

Step B N-Cyclopropyl-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide

A stirred solution of 0.50 g (0.0013 mole) of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-,1,2,4-triazol-1-yl)phenyl]propionic acid (Compound A2), 0.071 g (0.0013 mole) of cyclopropylamine, 0.17 g (0.0013 mole) of 1-hydroxybenzotriazole hydrate, and 0.18 g (0.0014 mole) of N,N-diisopropylethylamine in approximately 15 mL of tetrahydrofuran was cooled to 0° C. To this cold mixture was added 0.26 g (0.0013 mole) of 1,3-dicyclohexylcarbodiimide. After complete addition, the reaction mixture was allowed to warm to room temperature and was stirred for approximately 18 hours. The reaction mixture was filtered. The filtrate was diluted with carbon tetrachloride and was washed in succession with a 1N hydrochloric acid solution, an aqueous 10% sodium hydroxide solution, water, and an aqueous saturated sodium chloride solution. The organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was evaporated under reduced pressure to give 0.43 g of N-cyclopropyl-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide as a solid, m.p. 139°-143° C., Compound A17 of Table 1A.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 7 N-Methyl-N-methoxy-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide

A mixture of 0.50 g (0.0013 mole) of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid (Compound A2) and 5 mL of thionyl chloride was stirred at reflux for three hours. The mixture was cooled, and excess thionyl chloride was removed by distillation under reduced pressure leaving a residue. The residue was added to a cold solution of 0.13 g (0.0014 mole) of N,O-dimethylhydroxylamine hydrochloride and 0.11 g (0.0014 mole) of pyridine in 20 mL of tetrahydrofuran. The resultant mixture was stirred at room temperature for approximately 18 hours. The reaction mixture was diluted with diethyl ether and was washed in succession with a 1N hydrochloric acid solution, an aqueous 10% sodium hydroxide solution, water, and an aqueous saturated sodium chloride solution. The washed organic phase was dried over anhydrous magnesium sulfate and was filtered. The filtrate was evaporated under reduced pressure to give 0.37 g of N-methyl-N-methoxy-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide as an oil, Compound A22 of Table 1A.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 8 N-methylsulfonyl-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide

In a manner similar to Example 7, the reaction of 0.50 g (0.0013 mole) of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid (Compound A2) with 5 mL of thionyl chloride produced a residue. To this residue was added 0.50 g (0.0052 mole) of methanesulfonamide. The mixture was stirred and heated at 120° C. for two hours. The mixture was cooled, diluted with methylene chloride, and a resultant precipitate was removed by filtration. The filtrate was washed with water. The organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure to give 0.21 g of N-methylsulfonyl-2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionamide as a foam, Compound A25 of Table 1A.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 9 2-Chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]-N-(4-chlorophenyl)propionamide

A stirred solution of 0.50 g (0.0013 mole) of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid (Compound 2), 0.16 g (0.0013 mole) of 4-chloroaniline, 0.17 g (0.0013 mole) of 1-hydroxybenzotriazole hydrate, and 0.18 g (0.0014 mole) of N,N-diisopropylethylamine in approximately 15 mL of tetrahydrofuran was cooled to 0° C. To this cold reaction mixture was added 0.26 g (0.0013 mole) of 1,3-dicyclohexylcarbodiimide. After complete addition, the reaction mixture was allowed to warm to room temperature and was stirred for approximately 18 hours. The reaction mixture was filtered. The filtrate was diluted with carbon tetrachloride and was washed in succession with a 1N hydrochloric acid solution, an aqueous 10% sodium hydroxide solution, water, and an aqueous saturated sodium chloride solution. The organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure to give 0.28 g of 2-chloro-3-[2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]-N-(4-chlorophenyl)propionamide as an oil, Compound A23 of Table 1A.

The nmr and ir spectra were consistent with the proposed structure.

EXAMPLE 10 2-Chloro-3-[2-chloro-4-fluoro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-trizol-1-yl)phenyl]-N-(4-methylphenylsulfonyl)propionamide

To a stirred solution of 0.19 g (0.0012 mole) of 1,1'-carbonyldiimidazole in 3 mL of tetrahydrofuran was added a solution of 0.45 g (0.0012 mole) of 2-chloro-3-[2-chloro-4-fluoro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]propionic acid (prepared by the method of Example 6, Step A, from 1-(5-amino-4-chloro-2-fluorophenyl)-4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-one) in 5 mL of tetrahydrofuran.

The reaction mixture was diluted With 5 mL of tetrahydrofuran. The mixture was stirred at room temperature for 30 minutes and then was heated at reflux for 30 minutes. The reaction mixture was cooled to room temperature, and 0.20 g (0.0012 mole) of para-toluene-sulfonamide was added. The mixture was stirred for approximately 10 minutes, and 0.17 g (0.0012 mole) of 1,8-diazabicyclo [5.4.0]undec-7-ene was added. The resultant mixture was stirred at room temperature for approximately 18 hours. The reaction mixture was partitioned between diethyl ether and 1N hydrochloric acid solution. The organic phase was washed in succession with water and an aqueous saturated sodium chloride solution. The washed organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate evaporated under reduced pressure leaving a residue. This residue was purified by column chromatography on silica gel, eluting with n-heptane:ethanol:chloroform (1:1:1), to yield 0.23 g of 2-chloro-3-[2-chloro-4-fluoro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl]-N-(4-methylphenylsulfonyl)propionamide as a solid, m.p. 267°-269° C., Compound A38 of Table 1A.

The nmr spectrum was consistent with the proposed structure.

HERBICIDAL ACTIVITY

The plant test species used in demonstrating the herbicidal activity of compounds of this invention include cotton (Gossypium hirsutum var. DPL61), soybean (Glycine max var. Williams), field corn (Zea mays var. Pioneer 3732), wheat (Triticum aestivium var. Wheaton), rice (Oryza sativa var. Labelle), morningglory (Ipomea lacumosa or Ipomea hederacea), wild mustard (Brassica kaber), velvetleaf (Abutilon theophrasti), barnyardgrass (Echinochloa crus-galli), green foxtail (Setaria viridis), and johnsongrass (Sorghum halepense).

Preparation of Flats Preemergence

Two disposable fiber flats (8 cm×15 cm×25 cm) for each rate of application for each candidate herbicide for preemergence testing are filled to an approximate depth of 6.5 cm with steam sterilized sandy loam soil. The soil is leveled and impressed with a template to provide six evenly spaced furrows 13 cm long and 0.5 cm deep in each flat. Seeds of cotton, soybean, corn, rice and wheat are planted in five of the furrows of the first flat (the sixth furrow is left unplanted), and seeds of wild mustard, morningglory, velvetleaf, barnyardgrass, green foxtail, and johnsongrass are planted in the six furrows of the second flat. The template is again employed to firmly press the seeds into place. A topping soil of equal portions of sand and sandy loam soil is placed uniformly on top of each flat to a depth of approximately 0.5 cm. The flats are first watered, then sprayed with a solution of test compound as described below. Postemergence:

Two flats for each rate of application for each herbicide candidate are also prepared for postemergence application. The postemergence flats are prepared in the same manner as discussed above for the preemergence flats. The prepared flats are watered for 8-11 days, then the foliage of the emerged tests plants is sprayed with a solution of test compound as described below.

Application of Herbicides

In both the preemergence and postemergence tests, the candidate herbicides are applied as aqueous acetone solutions, usually at rates equivalent to 8.0 kilograms/hectare (kg/ha) and/or submultiples thereof, i.e., 4.0 kg/ha, 2.0 kg/ha, and so on.

The four flats (2 preemergence, 2 postemergence) are placed together and sprayed with 30 mL of test solution containing an appropriate amount of the test compound, i.e., approximately 7.5 mL of the test solution is sprayed on each of the four flats. Preemergence applications are made as sprays to the soil surface. Postemergence applications are made as sprays to the foliage. After treatment, the two preemergence flats are watered regularly at the soil surface for approximately 2 weeks, at which time phytotoxicity data are recorded. In the postemergence test the foliage is kept dry for 24 hours after treatment, then watered regularly for approximately 2 weeks, and phytotoxicity data recorded.

Preparation of Test Solutions

For flats of the size described above, an application rate of 8.0 kg/ha of active ingredient is equivalent to 0.06 g of active ingredient/flat (0.24 g/4 flats). A stock solution of 0.48 g of the candidate herbicide in 60 mL of a 50:50 mixture of water and acetone containing 0.5% (v/v) of sorbitan monolaurate emulsifier/solubilizer is divided into two 30 mL portions, each containing 0.24 g of the candidate herbicide. For the 8.0 kg/ha application, one of the 30 mL portions is sprayed undiluted onto the four flats (7.5 mL/flat). The remaining 30 mL portion of the stock solution is diluted with an additional 30 mL of the aqueous acetone/emulsifier mixture to provide 60 mL of a solution containing 0.24 g of candidate herbicide. As above, this solution is divided into two 30 mL portions, each containing 0.12 g of candidate herbicide. One of the 30 mL portions is applied, without further dilution, to the four flats for the 4.0 kg/ha rate. The remaining 30 mL portion is further diluted with an equal amount of aqueous acetone/emulsifier mixture, and the resulting 60 mL solution of 0.12 g candidate herbicide is divided into two 30 mL portions each containing 0.06 g of candidate herbicide. One of the 30 mL (0.06 g active) portions is used for the 2.0 kg/ha application rate and the other is used in the preparation of lower rate test solutions by the same serial dilution technique.

Phytotoxicity data are taken as percent control. Percent control is determined by a method similar to the 0 to 100 rating system disclosed in "Research Methods in Weed Science," 2nd ed., B. Truelove, Ed.; Southern Weed Science Society; Auburn University, Auburn, Ala., 1977. The rating system is as follows:

    ______________________________________                                         Herbicide Rating System                                                        Rating Description                                                             Percent                                                                               of Main   Crop          Weed                                            Control                                                                               Categories                                                                               Description   Description                                     ______________________________________                                          0     No effect No crop       No weed                                                          reduction     control                                                          or injury                                                     10               Slight dis-   Very poor weed                                                   coloration    control                                                          or stunting                                                   20     Slight    Some dis-     Poor weed                                              effect    coloration,   control                                                          stunting or                                                                    stand loss                                                    30               Crop injury   Poor to                                                          more pronounced                                                                              cient weed                                                       but not lasting                                                                              control                                         40               Moderate injury,                                                                             Deficient weed                                                   crop usually  control                                                          recovers                                                      50     Moderate  Crop injury   Deficient to                                           effect    more lasting, moderate weed                                                    recovery doubt-                                                                              control                                                          ful                                                           60               Lasting crop  Moderate weed                                                    injury, no    control                                                          recovery                                                      70               Heavy injury and                                                                             Control some-                                                    stand loss    what less than                                                                 satisfactory                                    80     Severe    Crop nearly des-                                                                             Satisfactory                                                     troyed, a few to good weed                                                     survivors     control                                         90               Only occasional                                                                              Very good to                                                     live plants left                                                                             excellent                                                                      control                                         100    Complete  Complete crop Complete weed                                          effect    destruction   destruction                                     ______________________________________                                    

Herbicidal data at selected application rates are given for various compounds of the invention in Tables 2, 2A, 3, and 3A below. The test compounds are identified in the tables by numbers which correspond to those in Table 1. The abbreviation "kg/ha" in Tables 2 and 3 means kilograms per hectare.

For herbicidal application, the active compounds are formulated into herbicidal compositions by admixture in herbicidally effective amounts with adjuvants and carriers normally employed in the art for facilitating the dispersion of active ingredients for the particular utility desired, recognizing the fact that the formulation and mode of application of a toxicant may affect the activity of the material in a given application. Thus, for agricultural use the present herbicidal compounds may be formulated as granules of relatively large particle size, as water-soluble or water-dispersible granules, as powdery dusts, as wettable powders, as emulsifiable concentrates, as solutions, or as any of several other known types of formulations, depending on the desired mode of application.

These herbicidal compositions may be applied either as water-diluted sprays, or dusts, or granules to the areas in which suppression of vegetation is desired. These formulations may contain as little as 0.1%, 0.2% or 0.5% to as much as 95% or more by weight of active ingredient.

Dusts are free flowing admixtures of the active ingredient with finely divided solids such as talc, natural clays, kieselguhr, flours such as walnut shell and cottonseed flours, and other organic and inorganic solids which act as dispersants and carriers for the toxicant; these finely divided solids have an average particle size of less than about 50 microns. A typical dust formulation useful herein is one containing 1.0 part or less of the herbicidal compound and 99.0 parts of talc.

Wettable powders, also useful formulations for both pre- and postemergence herbicides, are in the form of finely divided particles which disperse readily in water or other dispersant. The wettable powder is ultimately applied to the soil either as a dry dust or as an emulsion in water or other liquid. Typical carriers for wettable powders include Fuller's earth, kaolin clays, silicas, and other highly absorbent, readily wet inorganic diluents. Wettable powders normally are prepared to contain about 5-80% of active ingredient, depending on the absorbency of the carrier, and usually also contain a small amount of a wetting, dispersing or emulsifying agent to facilitate dispersion. For example, a useful wettable powder formulation contains 80.8 parts of the herbicidal compound, 17.9 parts of Palmetto clay, and 1.0 part of sodium lignosulfonate and 0.3 part of sulfonated aliphatic polyester as wetting agents. Other wettable powder formulations are:

    ______________________________________                                         Component                 % by Wt.                                             ______________________________________                                         Active ingredient         40.00                                                Sodium lignosulfonate     20.00                                                Attapulgite clay          40.00                                                Total                     100.00                                               Active ingredient         90.00                                                Dioctyl sodium sulfosuccinate                                                                            0.10                                                 Synthetic fine silica     9.90                                                 Total                     100.00                                               Active ingredient         20.00                                                Sodium alkylnaphthalenesulfonate                                                                         4.00                                                 Sodium lignosulfonate     4.00                                                 Low viscosity methyl cellulose                                                                           3.00                                                 Attapulgite clay          69.00                                                Total                     100.00                                               Active ingredient         25.00                                                Base:                     75.00                                                96% hydrated aluminum magnesium silicate                                        2% powdered sodium lignosulfonate                                              2% powdered anionic sodium alkyl-                                             naphthalenesulfonate                                                           Total                     100.00                                               ______________________________________                                    

Frequently, additional wetting agent and/or oil will be added to the tank-mix for postemergence application to facilitate dispersion on the foliage and absorption by the plant.

Other useful formulations for herbicidal applications are emulsifiable concentrates (ECs) which are homogeneous liquid or paste compositions dispersible in water or other dispersant, and may consist entirely of the herbicidal compound and a liquid or solid emulsifying agent, or may also contain a liquid carrier, such as xylene, heavy aromatic naphthas, isophorone, or other non-volatile organic solvent. For herbicidal application these concentrates are dispersed in water or other liquid carrier, and normally applied as a spray to the area to be treated. The percentage by weight of the essential active ingredient may vary according to the manner in which the composition is to be applied, but in general comprises 0.5 to 95% of active ingredient by weight of the herbicidal composition.

The following are specific examples of emulsifiable concentrate formulations:

    ______________________________________                                         Component                 % by Wt.                                             ______________________________________                                         Active ingredient         53.01                                                Blend of alkylnaphthalenesulfonate                                                                       6.00                                                 and polyoxyethylene ethers                                                     Epoxidized soybean oil    1.00                                                 Xylene                    39.99                                                Total                     100.00                                               Active ingredient         10.00                                                Blend of alkylnaphthalenesulfonate                                                                       4.00                                                 and polyoxyethylene ethers                                                     Xylene                    86.00                                                Total                     100.00                                               ______________________________________                                    

Flowable formulations are similar to ECs except that the active ingredient is suspended in a liquid carrier, generally water. Flowables, like ECs, may include a small amount of a surfactant, and contain active ingredient in the range of 0.5 to 95%, frequently from 10 to 50%, by weight of the composition. For application, flowables may be diluted in water or other liquid vehicle, and are normally applied as a spray to the area to be treated.

The following are specific examples of flowable formulations:

    ______________________________________                                         Component:                % by Wt.                                             ______________________________________                                         Active ingredient         46.00                                                Colloidal magnesium aluminum silicate                                                                    0.40                                                 Sodium alkylnaphthalenesulfonate                                                                         2.00                                                 Paraformaldehyde          0.10                                                 Water                     40.70                                                Propylene glycol          7.50                                                 Acetylenic alcohols       2.50                                                 Xanthan gum               0.80                                                 Total                     100.00                                               Active ingredient         45.00                                                Water                     48.50                                                Purified smectite clay    2.00                                                 Xanthan gum               0.50                                                 Sodium alkylnaphthalenesulfonate                                                                         1.00                                                 Acetylenic alcohols       3.00                                                 Total                     100.00                                               ______________________________________                                    

Typical wetting, dispersing or emulsifying agents used in agricultural formulations include, but are not limited to, the alkyl and alkylaryl sulfonates and sulfates and their sodium salts; alkylaryl polyether alcohols; sulfated higher alcohols; polyethylene oxides; sulfonated animal and vegetable oils; sulfonated petroleum oils; fatty acid esters of polyhydric alcohols and the ethylene oxide addition products of such esters; and the addition product of long-chain mercaptans and ethylene oxide. Many other types of useful surface-active agents are available in commerce. The surface-active agent, when used, normally comprises from 1 to 15% by weight of the composition.

Other useful formulations include simple solutions or suspensions of the active ingredient in a relatively non-volatile solvent such as Water, corn oil, kerosene, propylene glycol, or other suitable solvents. The following illustrate specific suspensions:

    ______________________________________                                                                 % by Wt.                                               ______________________________________                                         Oil Suspension:                                                                Active ingredient         25.00                                                Polyoxyethylene sorbitol hexaoleate                                                                      5.00                                                 Highly aliphatic hydrocarbon oil                                                                         70.00                                                Total                     100.00                                               Aqueous Suspension:                                                            Active ingredient         40.00                                                Polyacrylic acid thickener                                                                               0.30                                                 Dodecylphenol polyethylene glycol ether                                                                  0.50                                                 Disodium phosphate        1.00                                                 Monosodium phosphate      0.50                                                 Polyvinyl alcohol         1.00                                                 Water                     56.70                                                Total                     100.00                                               ______________________________________                                    

Other useful formulations for herbicidal applications include simple solutions of the active ingredient in a solvent in which it is completely soluble at the desired concentration, such as acetone, alkylated naphthalenes, xylene, or other organic solvents. Granular formulations, wherein the toxicant is carried on relatively coarse particles, are of particular utility for aerial distribution or for penetration of cover crop canopy. Pressurized sprays, typically aerosols wherein the active ingredient is dispersed in finely divided form as a result of vaporization of a low boiling dispersant solvent carrier, such as the Freon fluorinated hydrocarbons, may also be used. Water-soluble or water-dispersible granules are also useful formulations for herbicidal application of the present compounds. Such granular formulations are free-flowing, non-dusty, and readily water-soluble or water-miscible. The soluble or dispersible granular formulations described in U.S. Pat. No. 3,920,442 are useful herein with the present herbicidal compounds. In use by the farmer on the field, the granular formulations, emulsifiable concentrates, flowable concentrates, solutions, etc., may be diluted with water to give a concentration of active ingredient in the range of say 0.1% or 0.2% to 1.5% or 2%.

The active herbicidal compounds of this invention may be formulated and/or applied with insecticides, fungicides, nematicides, plant growth regulators, fertilizers, or other agricultural chemicals and may be used as effective soil sterilants as well as selective herbicides in agriculture. In applying an active compound of this invention, whether formulated alone or with other agricultural chemicals, an effective amount and concentration of the active compound is of course employed; for example, with Compound 3 (Table 1) applied postemergently, an amount in the range of about 15 to 125 g/ha, such as about 30 to 60 g/ha, may be employed for control of broad leaf weeds with tolerance for crops such as wheat and maize. For field use, where there are losses of herbicide, higher application rates (e.g. four times the rates mentioned above) may be employed.

The active herbicidal compounds of this invention may be used in combination with other herbicides, e.g. they may be mixed with, say, an equal or larger amount of a known herbicide such as chloroacetanilide herbicides such as 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide (alachlor), 2-chloro-N-(2-ethyl-6-methylphenyl-N-(2-methoxy-1-methylethyl)acetamide (metolachlor), and N-chloroacetyl-N-(2,6-diethylphenyl)-glycine (diethatyl-ethyl); benzothiadiazinone herbicides such as 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H)-one-2,2-dioxide (bentazon); triazine herbicides such as 6-chloro-N-ethyl-N-(1-methylethyl)-1,3,5-triazine-2,4-diamine (atrazine), and 2-[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino-2-methylpropanenitrile (cyanazine); dinitroaniline herbicides such as 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzeneamine (trifluralin); aryl urea herbicides such as N'-(3,4-dichlorophenyl)-N,N-dimethylurea (diuron) and N,N-dimethyl-N'-[3-(trifluoromethyl)phenyl]urea (fluometuron); and 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone.

It is apparent that various modifications may be made in the formulation and application of the compounds of this invention without departing from the inventive concepts herein as defined in the claims.

                  TABLE 1                                                          ______________________________________                                          ##STR28##                                                                     Cmpd. No.                                                                               X     Y       Q                                                       ______________________________________                                          1       F     Cl      CH.sub.2 CH.sub.2 CO.sub.2 C.sub.2 H.sub.5               2       F     Cl      CH(Br)CH(Br)CO.sub.2 C.sub.2 H.sub.5                     3       F     Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  4       F     Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                             5       Cl    Cl      CH.sub.2 CH.sub.2 CO.sub.2 CH.sub.3                      6       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 H                                7       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                         8       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  9       Cl    Cl      CH.sub.2 CH(Br)CO.sub.2 C.sub.2 H.sub.5                 10       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3).sub.2              11       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3)CH.sub.2                                   CH.sub.3                                                12       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.2 C.sub.6 H.sub.5        13       Cl    Cl      CH(Br)CH(Br)CO.sub.2 CH.sub.3                           14       Cl    Cl      CH(Br)CH(Br)CO.sub.2 C.sub.2 H.sub.5                    15       Cl    Cl      CH(CH.sub.3)CH(Cl)CO.sub.2 C.sub.2 H.sub.5              16       F     Cl      CH.sub.2 C(Cl)(CH.sub.3)CO.sub.2 CH.sub.3               17       Cl    Cl      CH.sub.2 CH(Cl)C(O)NH.sub.2                             18       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.3                           19       Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3).sub.2                    20       Cl    Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       21       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CHCH.sub.2                22       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        23       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOH                                 24       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOCH.sub.3                          25       Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 26       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHC.sub.6 H.sub.4 -4-Cl              27       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   28       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  29       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   30       Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             31       F     Cl      CH.sub.2 CH(CH.sub.3)CO.sub.2 CH.sub.3                  32       F     Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       33       F     Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        34       F     Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 35       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  36       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CF.sub.3                  37       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -2-Cl                                                   38       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -3-Cl                                                   39       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   40       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH(CH.sub.3).sub.2        41       F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             42       Cl    Cl      CHCHCO.sub.2 CH.sub.3                                   43       Cl    Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                            44       Cl    Cl      CHCHCO.sub.2 CH.sub.2 C.sub.6 H.sub.5                   45       F     Cl      CHC(CH.sub.3)CO.sub.2 CH.sub.3                          46       Cl    Cl      CH.sub.2 CH(Cl)CN                                       47       F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                        48       F     Cl      CH.sub.2 CH(Cl)COOH                                     49       Cl    Cl      CH.sub.2 CH(Cl)COCH.sub.3                               50       Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.3           51       Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.2                                  CH.sub.3                                                52       Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3)CH.sub.2 CH.sub.3        53       Cl    Cl      CH.sub.2 CH(Cl)CONH-cyclopentyl                         54       Cl    Cl      CHCHCONH-cyclopentyl                                    55       Cl    Cl      CHCHCONHCH.sub.2 CH.sub.2 CH.sub.3                      56       Cl    Cl      CHCHCONHCH(CH.sub.3)CH.sub.2 CH.sub.3                   57       F     Cl      CHCHCO.sub.2 CH.sub.3                                   58       F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3).sub.2              59       Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3).sub.2                   60       Cl    Cl      CHCHCONHCH(CH.sub.3).sub.2                              61       Cl    Cl      CH.sub.2 CH(Cl)CONHC.sub.2 H.sub.5                      62       Cl    Cl      CHCHCONHC.sub.2 H.sub.5                                 63       F     Cl      CH.sub.2 CH(Cl)CHO                                      64       F     Cl      CH.sub.2 CH(Cl)CO.sub.2 K                               65       F     Cl      CH.sub.2 CH(Cl)CO.sub.2 NH(C.sub.2 H.sub.5).sub.3       66       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 Na                              67       Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 NH(C.sub.2 H.sub.5).sub.3       ______________________________________                                    

                  TABLE 1A                                                         ______________________________________                                          ##STR29##                                                                     Cmpd No. X     Y       Q                                                       ______________________________________                                          A1      Cl    Cl      CH.sub.2 CH.sub.2 CO.sub.2 CH.sub.3                      A2      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 H                                A3      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                         A4      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  A5      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  A6      Cl    Cl      CH.sub.2 CH(Br)CO.sub.2 C.sub.2 H.sub.5                  A7      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3).sub.2               A8      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3)CH.sub.2                                   CH.sub.3                                                 A9      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.2 C.sub.6 H.sub.5        A10      Cl    Cl      CH(Br)CH(Br)CO.sub.2 CH.sub.3                           A11      Cl    Cl      CH(Br)CH(Br)CO.sub.2 C.sub.2 H.sub.5                    A12      Cl    Cl      CH(CH.sub.3)CH(Cl)CO.sub. 2 C.sub.2 H.sub.5             A13      F     Cl      CH.sub.2 C(Cl)(CH.sub.3)CO.sub.2 CH.sub.3               A14      Cl    Cl      CH.sub.2 CH(Cl)C(O)NH.sub.2                             A15      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.3                           A16      Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3).sub.2                    A17      Cl    Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       A18      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CHCH.sub.2                A19      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        A20      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOH                                 A21      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOCH.sub.3                          A22      Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 A23      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHC.sub.6 H.sub.4 -4-Cl              A24      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   A25      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  A26      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   A27      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             A28      F     Cl      CH.sub.2 CH(CH.sub.3)CO.sub.2 CH.sub.3                  A29      F     Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       A30      F     Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        A31      F     Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 A32      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  A33      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CF.sub.3                  A34      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -2-Cl                                                   A35      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -3-Cl                                                   A36      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   A37      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH(CH.sub.3).sub.2        A38      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             A39      Cl    Cl      CHCHCO.sub.2 CH.sub.3                                   A40      Cl    Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                            A41      F     Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                            A42      Cl    Cl      CHCHCO.sub.2 CH.sub.2 C.sub.6 H.sub.5                   A43      F     Cl      CHC(CH.sub.3)CO.sub.2 CH.sub.3                          A44      Cl    Cl      CH.sub.2 CH(Cl)CN                                       A45      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                        A46      F     Cl      CH.sub.2 CH(Cl)COOH                                     A47      Cl    Cl      CH.sub.2 CH(Cl)COCH.sub.3                               A48      Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.3           A49      Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.2                                  CH.sub.3                                                A50      Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3)CH.sub.2 CH.sub.3        A51      Cl    Cl      CH.sub.2 CH(Cl)CONH-cyclopentyl                         A52      Cl    Cl      CHCHCONH-cyclopentyl                                    A53      Cl    Cl      CHCHCONHCH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3             A54      Cl    Cl      CHCHCONHCH(CH.sub.3)CH.sub.2 CH.sub.3                   A55      F     Cl      CHCHCO.sub.2 CH.sub.3                                   A56      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3).sub.2              A57      Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3).sub.2                   A58      Cl    Cl      CHCHCONHCH(CH.sub.3).sub.2                              A59      Cl    Cl      CH.sub.2 CH(Cl)CONHC.sub.2 H.sub.5                      A60      Cl    Cl      CHCHCONHC.sub.2 H.sub.5                                 A61      F     Cl      CH.sub.2 CH(Cl)CHO                                      ______________________________________                                    

                  TABLE 1B                                                         ______________________________________                                          ##STR30##                                                                      ##STR31##                                                                     Cmpd No. X     Y       Q                                                       ______________________________________                                          B1      F     Cl      CH.sub.2 CH.sub.2 CO.sub.2 C.sub.2 H.sub.5               B2      F     Cl      CH(Br)CH(Br)CO.sub.2 C.sub.2 H.sub.5                     B3      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  B4      F     Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                             B5      Cl    Cl      CH.sub.2 CH.sub.2 CO.sub.2 CH.sub.3                      B6      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 H                                B7      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                         B8      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 C.sub.2 H.sub.5                  B9      Cl    Cl      CH.sub.2 CH(Br)CO.sub.2 C.sub.2 H.sub.5                 B10      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3).sub.2              B11      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH.sub.3)CH.sub.2                                   CH.sub.3                                                B12      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.2 C.sub.6 H.sub.5        B13      Cl    Cl      CH(Br)CH(Br)CO.sub.2 CH.sub.3                           B14      Cl    Cl      CH(Br)CH(Br)CO.sub.2 C.sub.2 H.sub.5                    B15      Cl    Cl      CH(CH.sub.3)CH(Cl)CO.sub.2 C.sub.2 H.sub.5              B16      F     Cl      CH.sub.2 C(Cl)(CH.sub.3)CO.sub.2 CH.sub.3               B17      Cl    Cl      CH.sub.2 CH(Cl)C(O)NH.sub.2                             B18      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.3                           B19      Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3).sub.2                    B20      Cl    Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       B21      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CHCH.sub.2                B22      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        B23      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOH                                 B24      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHOCH.sub.3                          B25      Cl    Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 B26      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHC.sub.6 H.sub.4 -4-Cl              B27      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   B28      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  B29      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   B30      Cl    Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             B31      F     Cl      CH.sub.2 CH(CH.sub.3)CO.sub.2 CH.sub.3                  B32      F     Cl      CH.sub.2 CH(Cl)C(O)NH-cyclopropyl                       B33      F     Cl      CH.sub.2 CH(Cl)C(O)NHCH.sub.2 CN                        B34      F     Cl      CH.sub.2 CH(Cl)C(O)N(CH.sub.3)OCH.sub.3                 B35      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH.sub.3                  B36      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CF.sub.3                  B37      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -2-Cl                                                   B38      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -3-Cl                                                   B39      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-Cl                                                   B40      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 CH(CH.sub.3).sub.2        B41      F     Cl      CH.sub.2 CH(Cl)C(O)NHSO.sub.2 C.sub.6 H.sub.4                                  -4-CH.sub.3                                             B42      Cl    Cl      CHCHCO.sub.2 CH.sub.3                                   B43      Cl    Cl      CHCHCO.sub.2 C.sub.2 H.sub.5                            B44      Cl    Cl      CHCHCO.sub.2 CH.sub.2 C.sub.6 H.sub.5                   B45      F     Cl      CHC(CH.sub.3)CO.sub.2 CH.sub.3                          B46      Cl    Cl      CH.sub.2 CH(Cl)CN                                       B47      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH.sub.3                        B48      F     Cl      CH.sub.2 CH(Cl)COOH                                     B49      Cl    Cl      CH.sub.2 CH(Cl)COCH.sub.3                               B50      Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.3           B51      Cl    Cl      CH.sub.2 CH(Cl)CONHCH.sub.2 CH.sub.2 CH.sub.2                                  CH.sub.3                                                B52      Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3)CH.sub.2 CH.sub.3        B53      Cl    Cl      CH.sub.2 CH(Cl)CONH-cyclopentyl                         B54      Cl    Cl      CHCHCONH-cyclopentyl                                    B55      Cl    Cl      CHCHCONHCH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3             B56      Cl    Cl      CHCHCONHCH(CH.sub.3)CH.sub.2 CH.sub.3                   B57      F     Cl      CHCHCO.sub.2 CH.sub.3                                   B58      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 CH(CH(CH.sub.3).sub.2           B59      Cl    Cl      CH.sub.2 CH(Cl)CONHCH(CH.sub.3).sub.2                   B60      Cl    Cl      CHCHCONHCH(CH.sub.3).sub.2                              B61      Cl    Cl      CH.sub.2 CH(Cl)CONHC.sub.2 H.sub.5                      B62      Cl    Cl      CHCHCONHC.sub.2 H.sub.5                                 B63      F     Cl      CH.sub.2 CH(Cl)CHO                                      B64      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 K                               B65      F     Cl      CH.sub.2 CH(Cl)CO.sub.2 NH(C.sub.2 H.sub.5).sub.3       B66      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 Na                              B67      Cl    Cl      CH.sub.2 CH(Cl)CO.sub.2 NH(C.sub.2 H.sub.5).sub.2       ______________________________________                                    

Other representative compounds are compounds C1 to C67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR32##

Other representative compounds are compounds D1 to D67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR33##

Other representative compounds are compounds E1 to E67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR34##

Other representative compounds are compounds F1 to F67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR35##

Other representative compounds are compounds G1 to G67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR36##

Other representative compounds are compounds H1 to H67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR37##

Other representative compounds are compounds I1 to I67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR38##

Other representative compounds are compounds J1 to J67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR39##

Other representative compounds are compounds K1 to K67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR40##

Other representative compounds are compounds M1 to M67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR41##

Other representative compounds are compounds N1 to N67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR42## where R^(n) is isopropyl.

Other representative compounds are identical to compounds N1 to N67 except that R^(n) is CH₃. Other representative compounds are those which are identical to N1 to N67 except that R^(n) is C₂ H₅. Still other representative compounds are identical to N1 to N67 except that R^(n) is CH₂ CH₂ CH₃. Other representative compounds are identical to N1 to N67 except that R^(n) is CH₂ CH₂ CH₂ F.

Other representative compounds are compounds P1 to P67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR43##

Other representative compounds are compounds Q1 to Q67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR44##

Other representative compounds are compounds R¹ to R67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR45##

Other representative compounds are compounds S1 to S67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR46##

Other representative compounds are compounds T1 to T67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR47##

Other representative compounds are compounds U1 to U67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR48##

Other representative compounds are compounds V1 to V67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR49##

Other representative compounds are compounds W1 to W67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR50##

Other representative compounds are compounds X1 to X67 which are identical with each of compounds B1 to B67 above except that in each case NHet is ##STR51##

Other representative compounds are compounds XA1-XA67 which are identical to each of compounds B1 to B67 above except that in each case NHet is ##STR52##

                  TABLE 2                                                          ______________________________________                                         Preemergence Herbicidal Activity                                               % Control @ 0.5 kg/ha                                                          Cmpd. No.                                                                      Species        1      2         3    4                                         ______________________________________                                         Cotton         30     20        95   40                                        Soybean         5      5         0   10                                        Corn            5     10         5    5                                        Rice           30      5        20   20                                        Wheat           5      5        15   30                                        Morningglory   10     80        100  80                                        Wild Mustard   100    100       100  100                                       Velvetleaf     100    100       100  100                                       Barnyardgrass  80     40        20   80                                        Green Foxtail  70      0        60   70                                        Johnsongrass   90      5        70   70                                        ______________________________________                                    

                  TABLE 2A                                                         ______________________________________                                         PREEMERGENCE HERBICIDAL ACTIVITY                                               (% CONTROL)                                                                    ______________________________________                                                   Compound No.                                                                   1A         2A      3A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton       0           90      50                                            Soybean      0            0       5                                            Field Corn  30           10      10                                            Rice        60           10       5                                            Wheat        5            0       5                                            Morningglory                                                                               50           100     95                                            Wild Mustard                                                                               70           90      100                                           Velvetleaf  95           100     100                                           Barnyardgrass                                                                              30            5      70                                            Green Foxtail                                                                              50           10      85                                            Johnsongrass                                                                               50           30      50                                            ______________________________________                                                   Compound No.                                                                   4A         5A      6A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      70           90      30                                            Soybean      5            0       5                                            Field Corn  10            5      10                                            Rice        15           10       5                                            Wheat       10           20       0                                            Morningglory                                                                               100          100     50                                            Wild Mustard                                                                               100          100     60                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              40           20       0                                            Green Foxtail                                                                               5            5       0                                            Johnsongrass                                                                               70           40       5                                            ______________________________________                                                   Compound No.                                                                   7A         8A      9A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      90           80      80                                            Soybean      0            0       0                                            Field Corn  15           10      10                                            Rice        15            5      30                                            Wheat        0            0       5                                            Morningglory                                                                               90           40      100                                           Wild Mustard                                                                               100          90      95                                            Velvetleaf  95           100     100                                           Barnyardgrass                                                                              50            5      70                                            Green Foxtail                                                                              50           10      30                                            Johnsongrass                                                                               20           60      85                                            ______________________________________                                                   Compound No.                                                                   10A        11A     12A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton       5           10      50                                            Soybean     10            0       0                                            Field Corn   0           20      40                                            Rice        15           40      30                                            Wheat        0            5      60                                            Morningglory                                                                               30           50      100                                           Wild Mustard                                                                               100          100     95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              85           100     95                                            Green Foxtail                                                                              100          95      100                                           Johnsongrass                                                                               50           90      85                                            ______________________________________                                                   Compound No.                                                                   13A        14A     15A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      30           90      80                                            Soybean      0           95      95                                            Field Corn  10           95      95                                            Rice         5           95      95                                            Wheat       20           95      95                                            Morningglory                                                                               100          100     95                                            Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              60           100     95                                            Green Foxtail                                                                               5           100     100                                           Johnsongrass                                                                               30           100     100                                           ______________________________________                                                   Compound No.                                                                   16A        17A     18A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      80           60      70                                            Soybean     90           100     90                                            Field Corn  95           95      90                                            Rice        95           90      90                                            Wheat       95           100     95                                            Morningglory                                                                               70           100     95                                            Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              95           100     90                                            Green Foxtail                                                                              100          100     100                                           Johnsongrass                                                                               95           100     95                                            ______________________________________                                                   Compound No.                                                                   19A        22A     23A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      20           40      15                                            Soybean     50            5       5                                            Field Corn  80           85       0                                            Rice        60           30       5                                            Wheat       95           90       0                                            Morningglory                                                                               100          95      15                                            Wild Mustard                                                                               100          100     95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              95           100      5                                            Green Foxtail                                                                              95           100     95                                            Johnsongrass                                                                               100          95      20                                            ______________________________________                                                   Compound No.                                                                   24A        25A     26A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      30           80      85                                            Soybean     10            5       5                                            Field Corn   5           80      50                                            Rice         5           40      40                                            Wheat        5           85      50                                            Morningglory                                                                               50           100     80                                            Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              70           70      15                                            Green Foxtail                                                                              100          95      60                                            Johnsongrass                                                                               50           80      50                                            ______________________________________                                                   Compound No.                                                                   27A        28A     29A                                                         Rate (kg/ha)                                                         Species     0.5          0.25    0.5                                           ______________________________________                                         Cotton      10            0      100                                           Soybean      5            0      100                                           Field Corn  70            5      100                                           Rice        40            5      100                                           Wheat       70           15      100                                           Morningglory                                                                               85           20      100                                           Wild Mustard                                                                               100          50      100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              80           40      100                                           Green Foxtail                                                                              95            0      100                                           Johnsongrass                                                                               70           20      100                                           ______________________________________                                                   Compound No.                                                                    30A       31A     33A                                                         Rate (kg/ha)                                                         Species     0.25         0.5     0.25                                          ______________________________________                                         Cotton      80           70      10                                            Soybean     80           100      0                                            Field Corn  85           95      15                                            Rice        95           85       0                                            Wheat       95           95       5                                            Morningglory                                                                               100          100     85                                            Wild Mustard                                                                               100          100     90                                            Velvetleaf  100          100     95                                            Barnyardgrass                                                                              80           100      5                                            Green Foxtail                                                                              100          100      5                                            Johnsongrass                                                                               85           95      15                                            ______________________________________                                                   Compound No.                                                                   34A        36A     37A                                                         Rate (kg/ha)                                                         Species     0.25         0.25    0.25                                          ______________________________________                                         Cotton      95           30      70                                            Soybean      0            0       5                                            Field Corn   5           15      30                                            Rice         5            5      40                                            Wheat        5           10      15                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               95           100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                               5           90      30                                            Green Foxtail                                                                               0           85       0                                            Johnsongrass                                                                               10           10      30                                            ______________________________________                                                   Compound No.                                                                   39A        40A     41A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      30           10      20                                            Soybean     10           15       0                                            Field Corn  30           30      10                                            Rice        60           40      10                                            Wheat       10            5      30                                            Morningglory                                                                                5           20      95                                            Wild Mustard                                                                               95           100     100                                           Velvetleaf  95           100     100                                           Barnyardgrass                                                                              80           90      10                                            Green Foxtail                                                                              100          100     70                                            Johnsongrass                                                                               95           30      20                                            ______________________________________                                                        Compound No.                                                                   42A   43A                                                                      Rate (kg/ha)                                                    Species          0.5     0.5                                                   ______________________________________                                         Cotton           90       5                                                    Soybean           5       5                                                    Field Corn        5      10                                                    Rice             15      10                                                    Wheat             5      10                                                    Morningglory     20      80                                                    Wild Mustard     80      100                                                   Velvetleaf       10      100                                                   Barnyardgrass    20      50                                                    Green Foxtail    50      100                                                   Johnsongrass     20      40                                                    ______________________________________                                    

                  TABLE 3                                                          ______________________________________                                         Postemergence Herbicidal Activity                                              % Control @ 0.5 kg/ha                                                          Cmpd. No.                                                                      Species        1      2          3    4                                        ______________________________________                                         Species Cotton 100    90         100  100                                      Soybean        70     60         90   75                                       Corn           60     50         30   70                                       Rice           40     15         50   30                                       Wheat          30     40         95   70                                       Morningglory   85     95         100  90                                       Wild Mustard   100    100        100  100                                      Velvetleaf     100    100        100  100                                      Barnyardgrass  50     10         15   50                                       Green Foxtail  60     30         15   90                                       Johnsongrass   90     --         95   80                                       ______________________________________                                    

                  TABLE A                                                          ______________________________________                                         POSTEMERGENCE HERBICIDAL ACTIVITY                                              (% CONTROL)                                                                    ______________________________________                                                   Compound No.                                                                   1A         2A      3A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      95           100     100                                           Soybean     50           40      60                                            Field Corn  50           30      60                                            Rice        20           30      40                                            Wheat       30           40      20                                            Morningglory                                                                               90           95                                                    00                                                                             Wild Mustard                                                                               80           95      100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              50           30      70                                            Green Foxtail                                                                              50           15      95                                            Johnsongrass                                                                               30           ND      80                                            ______________________________________                                                   Compound No.                                                                   4A         5A      6A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      90           100     100                                           Soybean     80           80      40                                            Field Corn  50           50      40                                            Rice        50           60                                                    Wheat       50           80      30                                            Morningglory                                                                               100          100     90                                            Wild Mustard                                                                               100          100     95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              85           90      20                                            Green Foxtail                                                                              50           100     15                                            Johnsongrass                                                                               ND           70      10                                            ______________________________________                                                   Compound No.                                                                   7A         8A      9A                                                          Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      100          100     100                                           Soybean     80           50      95                                            Field Corn  40           40      50                                            Rice        40           20      20                                            Wheat       40           40      20                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              60           40      20                                            Green Foxtail                                                                              30           40      15                                            Johnsongrass                                                                               40           30      40                                            ______________________________________                                                   Compound No.                                                                   10A        11A     12A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      100          95      100                                           Soybean     60           40      60                                            Field Corn  50           50      70                                            Rice        20           15      50                                            Wheat       40           30      95                                            Morningglory                                                                               90           90      100                                           Wild Mustard                                                                               95           70      95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              70           90      95                                            Green Foxtail                                                                              40           50      85                                            Johnsongrass                                                                               ND           ND      95                                            ______________________________________                                                   Compound No.                                                                   13A        14A     15A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      100          100     100                                           Soybean     70           85      95                                            Field Corn  50           70      90                                            Rice        50           30      90                                            Wheat       90           90      90                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               100          100     95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              95           95      100                                           Green Foxtail                                                                              100          95      100                                           Johnsongrass                                                                               70           ND      90                                            ______________________________________                                                   Compound No.                                                                   16A        17A     18A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      95           100     100                                           Soybean     80           100     80                                            Field Corn  80           100     70                                            Rice        70           95      80                                            Wheat       80           100     90                                            Morningglory                                                                               100          100     95                                            Wild Mustard                                                                               85           100     85                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              100          95      70                                            Green Foxtail                                                                              95           100     100                                           Johnsongrass                                                                               85           95      80                                            ______________________________________                                                   Compound No.                                                                   19A        22A     23A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      100          100     70                                            Soybean     90           50      40                                            Field Corn  95           85      60                                            Rice        80           40      25                                            Wheat       100          80      30                                            Morningglory                                                                               100          100     90                                            Wild Mustard                                                                               80           80      80                                            Velvetleaf  100          100     90                                            Barnyardgrass                                                                              60           85      20                                            Green Foxtail                                                                              90           90      40                                            Johnsongrass                                                                               95           95      40                                            ______________________________________                                                   Compound No.                                                                   24A        25A     26A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      100          100     100                                           Soybean     80           70      90                                            Field Corn  60           85      60                                            Rice        10           60      40                                            Wheat       20           60      40                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               80           100     95                                            Velvetleaf  100          100     100                                           Barnyardgrass                                                                              40           30      70                                            Green Foxtail                                                                              80           70      95                                            Johnsongrass                                                                               60           100     60                                            ______________________________________                                                   Compound No.                                                                   27A        28A     29A                                                         Rate (kg/ha)                                                         Species     0.5          0.25    0.5                                           ______________________________________                                         Cotton      100          80      100                                           Soybean     80           60      95                                            Field Corn  85           80      100                                           Rice        60           50      95                                            Wheat       80           60      100                                           Morningglory                                                                               100          85      100                                           Wild Mustard                                                                               100          90      100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              30           30      100                                           Green Foxtail                                                                              60           95      100                                           Johnsongrass                                                                               80           60      100                                           ______________________________________                                                   Compound No.                                                                   30A        31A     33A                                                         Rate (kg/ha)                                                         Species     0.25         0.5     0.25                                          ______________________________________                                         Cotton      100          100     100                                           Soybean     85           85      80                                            Field Corn  80           70      50                                            Rice        70           60      15                                            Wheat       100          100     20                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              50           95      30                                            Green Foxtail                                                                              100          95      15                                            Johnsongrass                                                                               95           95      20                                            ______________________________________                                                   Compound No.                                                                   34A        36A     37A                                                         Rate (kg/ha)                                                         Species     0.25         0.25    0.25                                          ______________________________________                                         Cotton      100          100     100                                           Soybean     60           40      70                                            Field Corn  30           60      70                                            Rice        20           10      40                                            Wheat       50           20      20                                            Morningglory                                                                               100          100     100                                           Wild Mustard                                                                               100          100     100                                           Velvetleaf  100          100     100                                           Barnyardgrass                                                                              60           90      50                                            Green Foxtail                                                                              70           100      5                                            Johnsongrass                                                                               50           30      30                                            ______________________________________                                                   Compound No.                                                                   39A        30A     41A                                                         Rate (kg/ha)                                                         Species     0.5          0.5     0.5                                           ______________________________________                                         Cotton      70           90      100                                           Soybean     40           40      95                                            Field Corn  70           50      70                                            Rice        40           15      70                                            Wheat       30           40      70                                            Morningglory                                                                               70           90      100                                           Wild Mustard                                                                               100          80      100                                           Velvetleaf  100          95      100                                           Barnyardgrass                                                                              70           80      95                                            Green Foxtail                                                                              80           40      100                                           Johnsongrass                                                                               85           ND      80                                            ______________________________________                                                        Compound No.                                                                   42A   43A                                                                      Rate (kg/ha)                                                    Species          0.5     0.5                                                   ______________________________________                                         Cotton           100     100                                                   Soybean          40      100                                                   Field Corn       70      100                                                   Rice             15      60                                                    Wheat            15      95                                                    Morningglory     100     100                                                   Wild Mustard     90      100                                                   Velvetleaf       100     100                                                   Barnyardgrass     5      95                                                    Green Foxtail    10      100                                                   Johnsongrass     60      70                                                    ______________________________________                                     

I claim:
 1. A herbicidal compound of the formula ##STR53## in which Q is --CR¹ (R²)C(R³)(R⁴)Q' or --CR¹ ═C(R⁴)Q';R¹, R² and R³ are each, independently, hydrogen, halogen, or lower alkyl; R⁴ is hydrogen or lower alkyl; Q' is --COOH, --COOZ, --COOR⁵, --CON(R⁶)(R⁷), --CHO or --C(O)R⁵ ; Z is a salt-forming cation; R⁵ is alkyl, cycloalkyl, benzyl, halobenzyl, alkylbenzyl or haloalkylbenzyl; each of R⁶ and R⁷ is, independently, hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, phenyl, benzyl, or SO₂ R⁸ or is one of said radicals substituted by halogen, alkyl, or cyano, R⁸ being the same as R⁶ other than hydrogen or SO₂ R⁸ ; X is hydrogen, halogen, alkyl, haloalkyl, alkoxy, or nitro; Y is hydrogen, halogen, alkyl, alkoxy, haloalkyl, haloalkylsulfinyl, haloalkoxy, or alkylthio; NHet is a monovalent nitrogen-containing group of the formula ##STR54## in which R^(c) and R^(d) are each H or together constitute a double bond and R^(e) is alkyl or haloalkyl; and in which any alkyl, alkenyl, alkynyl or alkylene moiety has up to about 6 carbon atoms and any cycloalkyl group has from about 3 to 6 carbon atoms.
 2. A compound as in claim 1 in which X is F or Cl, and Y is Cl or Br.
 3. A compound as in claim 2 in which Q is CH₂ CH(Cl)Q'.
 4. A compound as in claim 3 in which Q' is CO₂ R⁵ and R⁵ is lower alkyl.
 5. A compound as in claim 4 in which R⁵ is ethyl.
 6. A compound as in claim 1 in which Q is CH═CHQ'.
 7. A compound as in claim 1 in which Q is CH₂ CH₂ Q'.
 8. A compound as in claim 1 in which Q is CH₂ CH(Cl)Q'.
 9. A compound as in claim 2 in which Q is CH═CHQ'.
 10. A compound as in claim 2 in which Q is CH₂ CH₂ Q'.
 11. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 1 in admixture with a suitable carrier.
 12. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 11. 13. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 2 in admixture with a suitable carrier.
 14. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 13. 15. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 3 in admixture with a suitable carrier.
 16. A method for controlling undesired plant growth growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 15. 17. A herbicidal composition comprising an herbicidally effective amount of the compound of claim 4 in admixture with a suitable carrier.
 18. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 17. 19. A herbicidal composition comprising an herbicidally effective amount of the compound of claim 5 in admixture with a suitable carrier.
 20. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 19. 21. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 6 in admixture with a suitable carrier.
 22. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 21. 23. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 7 in admixture with a suitable carrier.
 24. A method for controlling undesired plant growth growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 23. 25. A herbicidal composition comprising an herbicidally effective amount of the compound of claim 8 in admixture with a suitable carrier.
 26. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 25. 27. A herbicidal composition comprising an herbicidally effective amount of the compound of claim 9 in admixture with a suitable carrier.
 28. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 27. 29. A herbicidal composition comprising a herbicidally effective amount of the compound of claim 10 in admixture with a suitable carrier.
 30. A method for controlling undesired plant growth which comprises applying to the locus where control is desired a herbicidally effective amount of the composition of claim
 29. 